--- loncom/interface/lonstatistics.pm 2003/05/13 14:30:26 1.70 +++ loncom/interface/lonstatistics.pm 2005/04/07 07:34:52 1.124 @@ -1,6 +1,6 @@ # The LearningOnline Network with CAPA # -# $Id: lonstatistics.pm,v 1.70 2003/05/13 14:30:26 matthew Exp $ +# $Id: lonstatistics.pm,v 1.124 2005/04/07 07:34:52 albertel Exp $ # # Copyright Michigan State University Board of Trustees # @@ -38,20 +38,6 @@ lonstatistics Main handler for statistics and chart. -=head1 PACKAGES USED - - use strict; - use Apache::Constants qw(:common :http); - use Apache::lonnet(); - use Apache::lonhomework; - use Apache::loncommon; - use Apache::loncoursedata; - use Apache::lonhtmlcommon; - use Apache::lonproblemanalysis; - use Apache::lonproblemstatistics; - use Apache::lonstudentassessment; - use Apache::lonpercentage; - use Apache::lonmysql; =over 4 =cut @@ -64,26 +50,29 @@ use vars qw( @FullClasslist @Students @Sections - @SelectedSections %StudentData @StudentDataOrder @SelectedStudentData - $top_map - @Sequences - @SelectedMaps - @Assessments); + $enrollment_status); -use Apache::lonnet(); +use Apache::lonnet; use Apache::lonhomework; use Apache::loncommon; use Apache::loncoursedata; use Apache::lonhtmlcommon; +use Apache::lonmysql; +use Apache::lonlocal; +use Time::HiRes; +# +# Statistics Packages use Apache::lonproblemanalysis(); +use Apache::lonsubmissiontimeanalysis(); +use Apache::loncorrectproblemplot(); use Apache::lonproblemstatistics(); use Apache::lonstudentassessment(); use Apache::lonpercentage; -use Apache::lonmysql; -use Time::HiRes; +use Apache::lonstudentsubmissions(); +use Apache::lonsurveyreports(); ####################################################### ####################################################### @@ -134,8 +123,6 @@ undef the following package variables: =item @Sections -=item @SelectedSections - =item %StudentData =item @StudentDataOrder @@ -158,7 +145,6 @@ sub clear_classlist_variables { undef(@FullClasslist); undef(@Students); undef(@Sections); - undef(@SelectedSections); undef(%StudentData); undef(@SelectedStudentData); undef($curr_student); @@ -184,8 +170,6 @@ the following package variables: =item @Sections -=item @SelectedSections - =item %StudentData =item @SelectedStudentData @@ -206,47 +190,34 @@ upon the calling context. ####################################################### ####################################################### sub PrepareClasslist { - my $r = shift; my %Sections; &clear_classlist_variables(); # # Retrieve the classlist - my $cid = $ENV{'request.course.id'}; - my $cdom = $ENV{'course.'.$cid.'.domain'}; - my $cnum = $ENV{'course.'.$cid.'.num'}; + my $cid = $env{'request.course.id'}; + my $cdom = $env{'course.'.$cid.'.domain'}; + my $cnum = $env{'course.'.$cid.'.num'}; my ($classlist,$field_names) = &Apache::loncoursedata::get_classlist($cid, $cdom,$cnum); - if (exists($ENV{'form.Section'})) { - if (ref($ENV{'form.Section'})) { - @SelectedSections = @{$ENV{'form.Section'}}; - } elsif ($ENV{'form.Section'} !~ /^\s*$/) { - @SelectedSections = ($ENV{'form.Section'}); - } - } - @SelectedSections = ('all') if (! @SelectedSections); - foreach (@SelectedSections) { - if ($_ eq 'all') { - @SelectedSections = ('all'); - } - } + my @selected_sections = &get_selected_sections(); # # Deal with instructors with restricted section access - if ($ENV{'request.course.sec'} !~ /^\s*$/) { - @SelectedSections = ($ENV{'request.course.sec'}); + if ($env{'request.course.sec'} !~ /^\s*$/) { + @selected_sections = ($env{'request.course.sec'}); } # # Set up %StudentData - @StudentDataOrder = qw/fullname username domain id section status/; + @StudentDataOrder = qw/fullname username domain id section status comments/; foreach my $field (@StudentDataOrder) { - $StudentData{$field}->{'title'} = $field; - $StudentData{$field}->{'base_width'} = length($field); + $StudentData{$field}->{'title'} = &mt($field); + $StudentData{$field}->{'base_width'} = length(&mt($field)); $StudentData{$field}->{'width'} = $StudentData{$field}->{'base_width'}; } # # get the status requested - my $requested_status = 'Active'; - $requested_status = $ENV{'form.Status'} if (exists($ENV{'form.Status'})); + $enrollment_status = 'Active'; + $enrollment_status = $env{'form.Status'} if (exists($env{'form.Status'})); # # Process the classlist while (my ($student,$student_data) = each (%$classlist)) { @@ -273,11 +244,11 @@ sub PrepareClasslist { $Sections{$section}++; # # Only put in the list those students we are interested in - foreach my $sect (@SelectedSections) { + foreach my $sect (@selected_sections) { if ( (($sect eq 'all') || ($section eq $sect)) && - (($studenthash->{'status'} eq $requested_status) || - ($requested_status eq 'Any')) + (($studenthash->{'status'} eq $enrollment_status) || + ($enrollment_status eq 'Any')) ){ push (@Students,$studenthash); last; @@ -286,8 +257,8 @@ sub PrepareClasslist { } # # Put the consolidated section data in the right place - if ($ENV{'request.course.sec'} !~ /^\s*$/) { - @Sections = ($ENV{'request.course.sec'}); + if ($env{'request.course.sec'} !~ /^\s*$/) { + @Sections = ($env{'request.course.sec'}); } else { @Sections = sort {$a cmp $b} keys(%Sections); unshift(@Sections,'all'); # Put 'all' at the front of the list @@ -295,15 +266,16 @@ sub PrepareClasslist { # # Sort the Students my $sortby = 'fullname'; - $sortby = $ENV{'form.sort'} if (exists($ENV{'form.sort'})); + $sortby = $env{'form.sort'} if (exists($env{'form.sort'})); my @TmpStudents = sort { $a->{$sortby} cmp $b->{$sortby} || $a->{'fullname'} cmp $b->{'fullname'} } @Students; @Students = @TmpStudents; # # Now deal with that current student thing.... - if (exists($ENV{'form.StudentAssessmentStudent'})) { + $curr_student = undef; + if (exists($env{'form.SelectedStudent'})) { my ($current_uname,$current_dom) = - split(':',$ENV{'form.StudentAssessmentStudent'}); + split(':',$env{'form.SelectedStudent'}); my $i; for ($i = 0; $i<=$#Students; $i++) { next if (($Students[$i]->{'username'} ne $current_uname) || @@ -311,26 +283,25 @@ sub PrepareClasslist { $curr_student = $Students[$i]; last; # If we get here, we have our student. } - if ($i == 0) { - $prev_student = 'none'; - } else { - $prev_student = $Students[$i-1]; - } - if ($i == $#Students) { - $next_student = 'none'; - } else { - $next_student = $Students[$i+1]; + if (defined($curr_student)) { + if ($i == 0) { + $prev_student = undef; + } else { + $prev_student = $Students[$i-1]; + } + if ($i == $#Students) { + $next_student = undef; + } else { + $next_student = $Students[$i+1]; + } } } # - if (exists($ENV{'form.StudentData'})) { - if (ref($ENV{'form.StudentData'}) eq 'ARRAY') { - @SelectedStudentData = @{$ENV{'form.StudentData'}}; - } else { - @SelectedStudentData = ($ENV{'form.StudentData'}); - } + if (exists($env{'form.StudentData'})) { + @SelectedStudentData = + &Apache::loncommon::get_env_multiple('form.StudentData'); } else { - @SelectedStudentData = ('fullname'); + @SelectedStudentData = ('username'); } foreach (@SelectedStudentData) { if ($_ eq 'all') { @@ -347,43 +318,29 @@ sub PrepareClasslist { =pod -=item ¤t_student() +=item get_selected_sections -Returns a pointer to a hash containing data about the currently -selected student. +Returns an array of the selected sections =cut ####################################################### ####################################################### -sub current_student { - if (defined($curr_student)) { - return $curr_student; - } else { - return 'All Students'; +sub get_selected_sections { + my @selected_sections = + &Apache::loncommon::get_env_multiple('form.Section'); + @selected_sections = ('all') if (! @selected_sections); + foreach (@selected_sections) { + if ($_ eq 'all') { + @selected_sections = ('all'); + } } -} - -####################################################### -####################################################### - -=pod - -=item &previous_student() - -Returns a pointer to a hash containing data about the student prior -in the list of students. Or something. - -=cut - -####################################################### -####################################################### -sub previous_student { - if (defined($prev_student)) { - return $prev_student; - } else { - return 'No Student Selected'; + # + # Deal with instructors with restricted section access + if ($env{'request.course.sec'} !~ /^\s*$/) { + @selected_sections = ($env{'request.course.sec'}); } + return @selected_sections; } ####################################################### @@ -391,21 +348,61 @@ sub previous_student { =pod -=item &next_student() +=item §ion_and_enrollment_description -Returns a pointer to a hash containing data about the next student -to be viewed. +Returns a string describing the currenly selected section(s) and +enrollment status. + +Inputs: mode = 'plaintext' or 'localized' (defaults to 'localized') + 'plaintext' is used for example in Excel spreadsheets. +Returns: scalar description string. =cut ####################################################### ####################################################### -sub next_student { - if (defined($next_student)) { - return $next_student; +sub section_and_enrollment_description { + my ($mode) = @_; + if (! defined($mode)) { $mode = 'localized'; } + my @sections = &Apache::lonstatistics::get_selected_sections(); + my $description; + if ($mode eq 'localized') { + $description = &mt('Unable to determine section and enrollment'); + } elsif ($mode eq 'plaintext') { + $description = 'Unable to determine section and enrollment'; } else { - return 'No Student Selected'; + $description = 'Bad parameter passed to lonstatistics::section_and_enrollment_description'; + &Apache::lonnet::logthis($description); } + if (scalar(@sections) == 1 && $sections[0] ne 'all') { + if ($mode eq 'localized') { + $description = &mt('Section [_1]. [_2] enrollment status.', + $sections[0],$env{'form.Status'}); + } elsif ($mode eq 'plaintext') { + $description = 'Section '.$sections[0].'. '. + $env{'form.Status'}.' enrollment status.'; + } + } elsif (scalar(@sections) && $sections[0] eq 'all') { + if ($mode eq 'localized') { + $description = &mt('All sections. [_1] enrollment status.', + $env{'form.Status'}); + } elsif ($mode eq 'plaintext') { + $description = 'All sections. '. + $env{'form.Status'}.' enrollment status.'; + } + } elsif (scalar(@sections)) { + my $lastsection = pop(@sections); + if ($mode eq 'localized') { + $description = &mt('Sections [_1] and [_2]. [_3] enrollment status.', + join(', ',@sections),$lastsection, + $env{'form.Status'}); + } elsif ($mode eq 'plaintext') { + $description = + 'Sections '.join(', ',@sections).' and '.$lastsection.'. '. + $env{'form.Status'}.' enrollment status.'; + } + } + return $description; } ####################################################### @@ -413,69 +410,37 @@ sub next_student { =pod -=item &clear_sequence_variables() - -=cut - -####################################################### -####################################################### -sub clear_sequence_variables { - undef($top_map); - undef(@Sequences); - undef(@Assessments); -} - -####################################################### -####################################################### - -=pod - -=item &SetSelectedMaps($elementname) +=item get_students -Sets the @SelectedMaps array from $ENV{'form.'.$elementname}; +Returns a list of the selected students =cut ####################################################### ####################################################### -sub SetSelectedMaps { - my $elementname = shift; - if (exists($ENV{'form.'.$elementname})) { - if (ref($ENV{'form.'.$elementname})) { - @SelectedMaps = @{$ENV{'form.'.$elementname}}; - } else { - @SelectedMaps = ($ENV{'form.'.$elementname}); - } - } else { - @SelectedMaps = ('all'); +sub get_students { + if (! @Students) { + &PrepareClasslist() } + return @Students; } - ####################################################### ####################################################### =pod -=item &Sequences_with_Assess() +=item ¤t_student() -Returns an array containing the subset of @Sequences which contain -assessments. +Returns a pointer to a hash containing data about the currently +selected student. =cut ####################################################### ####################################################### -sub Sequences_with_Assess { - my @Sequences_to_Show; - foreach my $map_symb (@SelectedMaps) { - foreach my $sequence (@Sequences) { - next if ($sequence->{'symb'} ne $map_symb && $map_symb ne 'all'); - next if ($sequence->{'num_assess'} < 1); - push (@Sequences_to_Show,$sequence); - } - } - return @Sequences_to_Show; +sub current_student { + return $curr_student; } ####################################################### @@ -483,42 +448,17 @@ sub Sequences_with_Assess { =pod -=item &PrepareCourseData($r) +=item &previous_student() + +Returns a pointer to a hash containing data about the student prior +in the list of students. Or something. =cut ####################################################### ####################################################### -sub PrepareCourseData { - my ($r) = @_; - &clear_sequence_variables(); - my ($top,$sequences,$assessments) = - &Apache::loncoursedata::get_sequence_assessment_data(); - if (! defined($top) || ! ref($top)) { - # There has been an error, better report it - &Apache::lonnet::logthis('top is undefined'); - return; - } - $top_map = $top if (ref($top)); - @Sequences = @{$sequences} if (ref($sequences) eq 'ARRAY'); - @Assessments = @{$assessments} if (ref($assessments) eq 'ARRAY'); - # - # Compute column widths - foreach my $seq (@Sequences) { - my $name_length = length($seq->{'title'}); - my $num_parts = $seq->{'num_assess_parts'}; - # - # The number of columns needed for the summation text: - # " 1/5" = 1+3 columns, " 10/99" = 1+5 columns - my $sum_length = 1+1+2*(length($num_parts)); - my $num_col = $num_parts+$sum_length; - if ($num_col < $name_length) { - $num_col = $name_length; - } - $seq->{'base_width'} = $name_length; - $seq->{'width'} = $num_col; - } - return; +sub previous_student { + return $prev_student; } ####################################################### @@ -526,60 +466,17 @@ sub PrepareCourseData { =pod -=item &log_sequence($sequence,$recursive,$padding) +=item &next_student() -Write data about the sequence to a logfile. If $recursive is not -undef the data is written recursively. $padding is used for recursive -calls. +Returns a pointer to a hash containing data about the next student +to be viewed. =cut ####################################################### ####################################################### -sub log_sequence { - my ($seq,$recursive,$padding) = @_; - $padding = '' if (! defined($padding)); - if (ref($seq) ne 'HASH') { - &Apache::lonnet::logthis('log_sequence passed bad sequnce'); - return; - } - &Apache::lonnet::logthis($padding.'sequence '.$seq->{'title'}); - while (my($key,$value) = each(%$seq)) { - next if ($key eq 'contents'); - if (ref($value) eq 'ARRAY') { - for (my $i=0;$i< scalar(@$value);$i++) { - &Apache::lonnet::logthis($padding.$key.'['.$i.']='. - $value->[$i]); - } - } else { - &Apache::lonnet::logthis($padding.$key.'='.$value); - } - } - if (defined($recursive)) { - &Apache::lonnet::logthis($padding.'-'x20); - &Apache::lonnet::logthis($padding.'contains:'); - foreach my $item (@{$seq->{'contents'}}) { - if ($item->{'type'} eq 'container') { - &log_sequence($item,$recursive,$padding.' '); - } else { - &Apache::lonnet::logthis($padding.'title = '.$item->{'title'}); - while (my($key,$value) = each(%$item)) { - next if ($key eq 'title'); - if (ref($value) eq 'ARRAY') { - for (my $i=0;$i< scalar(@$value);$i++) { - &Apache::lonnet::logthis($padding.$key.'['.$i.']='. - $value->[$i]); - } - } else { - &Apache::lonnet::logthis($padding.$key.'='.$value); - } - } - } - } - &Apache::lonnet::logthis($padding.'end contents of '.$seq->{'title'}); - &Apache::lonnet::logthis($padding.'-'x20); - } - return; +sub next_student { + return $next_student; } ############################################## @@ -645,12 +542,96 @@ sub StudentDataSelect { return $Str; } +####################################################### +####################################################### + +=pod + +=item &get_selected_maps($elementname) + +Input: Name of the '."\n"; - # - # Deal with 'all' - foreach (@SelectedMaps) { - if ($_ eq 'all') { - @SelectedMaps = ('all'); - last; - } + $form .= 'multiple="true" '; } + $form .= 'size="'.$numvisible.'" >'."\n"; # # Put in option for 'all' - $Str .= ' \n"; + $form .= '>'.$seq->compTitle."\n"; } - $Str .= "\n"; - return $Str; + $form .= "\n"; + return $form; } ############################################## @@ -739,6 +707,7 @@ sub MapSelect { Returns html for a selection box allowing the user to choose one (or more) of the sections in the course. +Uses the package variables @Sections =over 4 =item $elementname The name of the HTML form element @@ -747,13 +716,6 @@ of the sections in the course. =item $numvisible The number of options to be visible -=item $selected Array ref to the names of the already selected sections. -If undef, $ENV{'form.'.$elementname} is used. -If $ENV{'form.'.$elementname} is also empty, none will be selected. - -=item $restriction Code reference to subroutine which returns true or -false. The code must expect a reference to a sequence data structure. - =back =cut @@ -766,6 +728,11 @@ sub SectionSelect { return; } # + # Make sure we have the data we need to continue + if (! @Sections) { + &PrepareClasslist() + } + # # Build the form element my $Str = "\n"; $Str .= ''; + $r->print($Str); + $r->rflush(); # - my $Str=''; + my @Fields = ('fullname','username','domain','id','section','status'); + # + $Str = ''; + my @selected_sections = &get_selected_sections(); + if (! @Students) { + if ($selected_sections[0] eq 'all') { + if (lc($env{'form.Status'}) eq 'any') { + $Str .= '

'. + &mt('There are no students in the course.'). + '

'; + } elsif (lc($env{'form.Status'}) eq 'active') { + $Str .= '

'. + &mt('There are no currently enrolled students in the course.'). + '

'; + } elsif (lc($env{'form.Status'}) eq 'expired') { + $Str .= '

'. + &mt('There are no previously enrolled students in the course.'). + '

'; + } + } else { + my $sections; + if (lc($env{'form.Status'}) eq 'any') { + $Str .= '

'. + &mt('There are no students in the selected sections.'). + '

'; + } elsif (lc($env{'form.Status'}) eq 'active') { + $Str .= '

'. + &mt('There are no currently enrolled students in the selected sections.'). + '

'; + } elsif (lc($env{'form.Status'}) eq 'expired') { + $Str .= '

'. + &mt('There are no previously enrolled students in the selected sections.'). + '

'; + } + } + $Str.= ''. + &mt('Click here to return to the chart').''; + $r->print($Str); + $r->rflush(); + return; + } + + # "Click" is asinine but it is probably not my place to change the world. + $Str .= '

Click on a students name or username to view their chart

'; $Str .= '
'."\n"; $Str .= ''."\n"; foreach my $field (@Fields) { - $Str .= ''; } $Str .= ''."\n"; @@ -817,13 +853,16 @@ sub DisplayClasslist { # foreach my $field (@Fields) { $Str .= '
'.$field. + $Str .= ''.&mt($field). '
'; - if ($field eq 'fullname') { + if ($field eq 'fullname' || $field eq 'username') { $Str .= ''; $Str .= $student->{$field}.' '; $Str .= ''; + } elsif ($field eq 'status') { + $Str .= &mt($student->{$field}); } else { $Str .= $student->{$field}; } @@ -842,36 +881,58 @@ sub DisplayClasslist { ############################################## ############################################## sub CreateMainMenu { - my ($status,$reports,$current)=@_; # - my $Str = ''; + # Define menu data + my @reports = ({ internal_name => 'problem_statistics', + name => &mt('Overall Problem Statistics'), + short_description => + &mt('Student performance statistics on all problems.'), + }, + { internal_name => 'problem_analysis', + name => &mt('Detailed Problem Analysis'), + short_description => + &mt('Detailed statistics and graphs of student performance on problems.'), + }, + { internal_name => 'submissiontime_analysis', + name => &mt('Submission Time Plots'), + short_description => + &mt('Display and analysis of submission times on assessments.'), + }, + { internal_name => 'student_submission_reports', + name => &mt('Student Submission Reports'), + short_description => + &mt('Prepare reports of student submissions.'), + }, + { internal_name => 'survey_reports', + name => &mt('Survey Reports'), + short_description => + &mt('Prepare reports on survey results.'), + }, + { internal_name => 'correct_problems_plot', + name => &mt('Correct Problems Plot'), + short_description => + &mt('Display a histogram of student performance in the course.'), + }, +# { internal_name => 'student_assessment', +# name => &mt('Problem Status Chart'), +# short_description => +# &mt('Brief view of each students performance in course.'), +# }, + # 'percentage' => 'Correct-problems Plot', + # 'activitylog' => 'Activity Log', + ); # - $Str .= ''."\n"; - $Str .= ''."\n"; - $Str .= ''."\n"; - $Str .= ''."\n"; - $Str .= ''."\n"; - # - $Str .= '\n"; - $Str .= '\n"; - # - $Str .= ''."\n"; - # - $Str .= '
Select a Report
'. - ''. - "'. - ''. - "'; - $Str .= '
'."\n"; - $Str .= '
'."\n"; + $Str .="\n"; # return $Str; } @@ -887,108 +948,139 @@ sub handler { if ($loaderror) { return $loaderror; } $loaderror= &Apache::lonnet::overloaderror($r, - $ENV{'course.'.$ENV{'request.course.id'}.'.home'}); + $env{'course.'.$env{'request.course.id'}.'.home'}); if ($loaderror) { return $loaderror; } # # Check for access - if (! &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) { - $ENV{'user.error.msg'}= + if (! &Apache::lonnet::allowed('vgr',$env{'request.course.id'})) { + $env{'user.error.msg'}= $r->uri.":vgr:0:0:Cannot view grades for complete course"; if (! &Apache::lonnet::allowed('vgr', - $ENV{'request.course.id'}.'/'.$ENV{'request.course.sec'})) { - $ENV{'user.error.msg'}= + $env{'request.course.id'}.'/'.$env{'request.course.sec'})) { + $env{'user.error.msg'}= $r->uri.":vgr:0:0:Cannot view grades with given role"; return HTTP_NOT_ACCEPTABLE; } } # - # Set document type for header only - if($r->header_only) { - if ($ENV{'browser.mathml'}) { - $r->content_type('text/xml'); - } else { - $r->content_type('text/html'); - } - &Apache::loncommon::no_cache($r); - $r->send_http_header; - return OK; - } - # # Send the header - $r->content_type('text/html'); + &Apache::loncommon::no_cache($r); + &Apache::loncommon::content_type($r,'text/html'); $r->send_http_header; + if ($r->header_only) { return OK; } # # Extract form elements from query string &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, ['sort','reportSelected', - 'StudentAssessmentStudent']); - if (! exists($ENV{'form.reportSelected'})) { - $ENV{'form.reportSelected'} = 'student_assessment'; - } + 'SelectedStudent']); # # Give the LON-CAPA page header - $r->print(&Apache::lonhtmlcommon::Title('Course Statistics and Charts')); - $r->rflush(); - # - if (! &Apache::lonmysql::verify_sql_connection()) { - my $serveradmin = $r->dir_config('lonAdmEMail'); - $r->print(<Unable to connect to database! -

-Please notify the server administrator $serveradmin. -

-Course Statistics and Charts cannot be retrieved until the database is -restarted. Your data is intact but cannot be displayed at this time. -

- - -END - return; - } - # - # Clean out the caches - if (exists($ENV{'form.ClearCache'})) { - &Apache::loncoursedata::delete_caches($ENV{'requres.course.id'}); - } - # - # Set up the statistics and chart environment - &PrepareClasslist($r); - &PrepareCourseData($r); - # - # Begin form output - $r->print('
print('method="post" action="/adm/statistics">'); - # - # Print main menu - my %reports = ('classlist' => 'Class list', - 'problem_statistics' => 'Problem Statistics', - 'student_assessment' => 'Problem Status Chart', - 'percentage' => 'Correct-problems Plot', - 'option_response' => 'Option Response Analysis', -# 'activitylog' => 'Activity Log', - ); - $r->print(&CreateMainMenu($ENV{'form.status'}, - \%reports,$ENV{'form.reportSelected'})); + my $style = < + ul.sub_studentans { list-style-type: none } + ul.sub_correctans { list-style-type: none } + tr.even { background-color: \#CCCCCC } + td.essay { border: 1px solid gray; } + +ENDSTYLE + my $html=&Apache::lonxml::xmlbegin(); + $r->print($html.''. + &mt('Course Statistics and Charts'). + ''.$style. + "\n". + &Apache::loncommon::bodytag('Course Statistics and Charts')); $r->rflush(); + # + # Either print out a menu for them or send them to a report + &Apache::lonhtmlcommon::clear_breadcrumbs(); + &Apache::lonhtmlcommon::add_breadcrumb({href=>'/adm/statistics', + title=>'Statistics', + text =>'Statistics', + faq=>139, + bug=>'Statistics and Charts'}); + if (! exists($env{'form.reportSelected'}) || + $env{'form.reportSelected'} eq '') { + $r->print(&Apache::lonhtmlcommon::breadcrumbs + (undef,&mt('Statistics Main Page')). + &CreateMainMenu()); + } else { # - my $GoToPage = $ENV{'form.reportSelected'}; - if($GoToPage eq 'activitylog') { + if (! &Apache::lonmysql::verify_sql_connection()) { + my $serveradmin = $r->dir_config('lonAdmEMail'); + $r->print('

'. + &mt('Unable to connect to database!'). + '

'); + $r->print('

'. + &mt('Please notify the server administrator '). + ''.$serveradmin.'

'); + $r->print('

'. + &mt('Course Statistics and Charts cannot be '. + 'retrieved until the database is restarted. '. + 'Your data is intact but cannot be displayed '. + 'at this time.').'

'); + $r->print(''); + return; + } + # + # Clean out the caches + if (exists($env{'form.ClearCache'})) { + &Apache::loncoursedata::delete_caches($env{'requres.course.id'}); + } + # + # Begin form output + $r->print('print('method="post" action="/adm/statistics">'); + $r->rflush(); + # + my $GoToPage = $env{'form.reportSelected'}; + # + $r->print(''); + if($GoToPage eq 'activitylog') { # &Apache::lonproblemstatistics::Activity(); - } elsif($GoToPage eq 'problem_statistics') { - &Apache::lonproblemstatistics::BuildProblemStatisticsPage($r,$c); - } elsif($GoToPage eq 'option_response') { -# &Apache::lonproblemanalysis::BuildProblemAnalysisPage($r,$c); - } elsif($GoToPage eq 'student_assessment') { - &Apache::lonstudentassessment::BuildStudentAssessmentPage($r,$c); - } elsif($GoToPage eq 'DoDiffGraph' || $GoToPage eq 'PercentWrongGraph') { -# &Apache::lonproblemstatistics::BuildGraphicChart($r,$c); - } elsif($GoToPage eq 'classlist') { - &DisplayClasslist($r); - } elsif($GoToPage eq 'Correct-problems Plot') { -# &Apache::lonpercentage::BuildPercentageGraph($r,$c); + } elsif($GoToPage eq 'problem_statistics') { + &Apache::lonhtmlcommon::add_breadcrumb + ({href=>'/adm/statistics?reportselected=problem_statistics', + text=>'Overall Problem Statistics'}); + &Apache::lonproblemstatistics::BuildProblemStatisticsPage($r,$c); + } elsif($GoToPage eq 'problem_analysis') { + &Apache::lonhtmlcommon::add_breadcrumb + ({href=>'/adm/statistics?reportselected=problem_analysis', + text=>'Detailed Problem Analysis'}); + &Apache::lonproblemanalysis::BuildProblemAnalysisPage($r,$c); + } elsif($GoToPage eq 'submissiontime_analysis') { + &Apache::lonhtmlcommon::add_breadcrumb + ({href=> + '/adm/statistics?reportselected=submissiontime_analysis', + text=>'Submission Time Plots'}); + &Apache::lonsubmissiontimeanalysis::BuildSubmissionTimePage($r,$c); + } elsif($GoToPage eq 'student_submission_reports') { + &Apache::lonhtmlcommon::add_breadcrumb + ({href=> + '/adm/statistics?reportselected=student_submission_reports', + text=>'Student Submission Reports'}); + &Apache::lonstudentsubmissions::BuildStudentSubmissionsPage($r,$c); + } elsif($GoToPage eq 'survey_reports') { + &Apache::lonhtmlcommon::add_breadcrumb + ({href=> + '/adm/statistics?reportselected=survey_reports', + text=>'Survey Reports'}); + &Apache::lonsurveyreports::BuildSurveyReportsPage($r,$c); + } elsif($GoToPage eq 'correct_problems_plot') { + &Apache::lonhtmlcommon::add_breadcrumb + ({href=>'/adm/statistics?reportselected=correct_problems_plot', + text=>'Correct Problems Plot'}); + &Apache::loncorrectproblemplot::BuildCorrectProblemsPage($r,$c); + } elsif($GoToPage eq 'student_assessment') { + &Apache::lonhtmlcommon::clear_breadcrumbs(); + &Apache::lonhtmlcommon::add_breadcrumb + ({href=>'/adm/statistics?reportselected=student_assessment', + text=>'Chart'}); + &Apache::lonstudentassessment::BuildStudentAssessmentPage($r,$c); + } + # + $r->print("\n"); } - # - $r->print("\n"); $r->print("\n\n"); $r->rflush(); #